= *(u64 *)(r10 -8) 7: (95) exit processed 8 insns (limit 131072), stack depth 8 Remove struct padding with aligning members by using #pragma pack. In modern compilers, data structures are aligned by memory efficiently. Structure members are aligned to memory address that mul�ples their size, and padding is added for the proper alignment. Because of this, the size of struct may o�en grow larger than | // |________________________| // | sector(4) | PADDING | <= address aligned to 8 // |____________|___________| with 4-byte PADDING. The BPF verifier in the kernel checks the stack boundary

*(u64 *)(r10 -8) 7: (95) exit processed 8 insns (limit 131072), stack depth 8 10. Remove struct padding with aligning members by using #pragma pack. In modern compilers, data structures are aligned by memory efficiently. Structure members are aligned to memory address that multiples their size, and padding is added for the proper alignment. Because of this, the size of struct may often grow larger than | // |________________________| // | sector(4) | PADDING | <= address aligned to 8 // |____________|___________| with 4-byte PADDING. The BPF verifier in the kernel checks the stack boundary

*(u64 *)(r10 -8) 7: (95) exit processed 8 insns (limit 131072), stack depth 8 10. Remove struct padding with aligning members by using #pragma pack. In modern compilers, data structures are aligned by memory efficiently. Structure members are aligned to memory address that multiples their size, and padding is added for the proper alignment. Because of this, the size of struct may often grow larger than | // |________________________| // | sector(4) | PADDING | <= address aligned to 8 // |____________|___________| with 4-byte PADDING. The BPF verifier in the kernel checks the stack boundary

of all its field types plus the number of some padding bytes. The padding bytes are used to align the memory addresses of some fields. We can learn padding and memory address alignments in a later article of a struct type depends on all of the sizes and the order of its fields. For there may be some padding bytes (§44) being inserted between two adjacent struct fields to guarantee certain memory address specified interface 2 words not specified struct (the sum of sizes of all fields) + (the number of padding (§44) bytes) the size of a struct type is zero if it contains no fields that have a size greater

*(u64 *)(r10 -8) 7: (95) exit processed 8 insns (limit 131072), stack depth 8 10. Remove struct padding with aligning members by using #pragma pack. In modern compilers, data structures are aligned by memory efficiently. Structure members are aligned to memory address that multiples their size, and padding is added for the proper alignment. Because of this, the size of struct may often grow larger than | // |________________________| // | sector(4) | PADDING | <= address aligned to 8 // |____________|___________| with 4-byte PADDING. The BPF verifier in the kernel checks the stack boundary

参数去指定要扩大的宽度和高度 参数详解： pad = padding ：增加视频区域，即宽度和（或）高度 width 和 height ：（增加了padding后的）输出的视频的宽度和高度 值的方式 固定的数值 表达式 可以借用内置支持的常量或变量 比如 输入的原始视频的 宽度： in_w = iw 高度： in_h = ih 输出的padding后的视频的 宽度： out_w = ow

of all its field types plus the number of some padding bytes. The padding bytes are used to align the memory addresses of some fields. We can learn padding and memory address alignments in a later article of a struct type depends on all of the sizes and the order of its fields. For there may be some padding bytes (§44) being inserted between two adjacent struct fields to guarantee certain memory address specified interface 2 words not specified struct (the sum of sizes of all fields) + (the number of padding (§44) bytes) the size of a struct type is zero if it contains no fields that have a size greater

*(u64 *)(r10 -8) 7: (95) exit processed 8 insns (limit 131072), stack depth 8 10. Remove struct padding with aligning members by using #pragma pack. In modern compilers, data structures are aligned by memory efficiently. Structure members are aligned to memory address that multiples their size, and padding is added for the proper alignment. Because of this, the size of struct may often grow larger than | // |________________________| // | sector(4) | PADDING | <= address aligned to 8 // |____________|___________| with 4-byte PADDING. The BPF verifier in the kernel checks the stack boundary

*(u64 *)(r10 -8) 7: (95) exit processed 8 insns (limit 131072), stack depth 8 10. Remove struct padding with aligning members by using #pragma pack. In modern compilers, data structures are aligned by memory efficiently. Structure members are aligned to memory address that multiples their size, and padding is added for the proper alignment. Because of this, the size of struct may often grow larger than | // |________________________| // | sector(4) | PADDING | <= address aligned to 8 // |____________|___________| with 4-byte PADDING. The BPF verifier in the kernel checks the stack boundary

参数详解： pad = padding ：增加视频区域，即宽度和（或）高度 width 和 height ：（增加了padding后的）输出的视频的 宽度和高度 值的方式 固定的数值 表达式 可以借用内置支持的常量或变量 比如 输入的原始视频的 宽度： in_w = iw 高度： in_h = ih 输出的padding后的视频的 宽度： out_w